Heating system.



A. G. PAUL.

HEATING SYSTEM. v APPLIGATION FILED MAY 15, 1900.

Patented Nov. 26, 1912.

2 SHEETS-SHEET 1.

INVENTOR COLUMBIA PLANOGRAPH C0, WASHINGTON, D. u.

A. G. PAUL.

HEATING SYSTEM.

APPLIOA-TION FILED MAY 15, 1900.

Patented Nov. 26, 1912.

2 SHEETS-SHEET 2.

HEATING SYSTEM.

Specification of Letters Patent.

Patented Nov. 26, 1912.

Application filed. May 15, 1900. Serial No. 16,818.

To all whom it may concerw Be it known that I, ANDREW Gr. PAUL, a citizen of the United States, residing in Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Heating Systems, of which the following is a full, clear, and exact specification, reference being had to the accompanying drawings, which form a part hereof.

This invention relates to a heating system wherein steam or other suitable heating agent is circulated'for the purpose of conveying and imparting heat to the places desired, and it consists in an improved construction and arrangement of the parts of such a system,

The object of my invention is to accurately'and positively control the operation of the system by means of a controlling valve of special construction and by a combination with certain other features set forth.

My invention consists first, in the combi nation with a heating system of a controlling valve which may be either a valve on the supply pipe or the return pipe or the air pipe, or any other valve by means of which the operation of the system can be regulated, the said valve consisting of a suitable casing provided with a port, a valve to open and close said port, a piston to operate said valve in one direction, and a second piston to oper ate the valve in the other direction, a fluid pressure chamber on one side of each piston, vents for said chambers, and a fluid actuating device adapted to be connected alternately with the fluid pressure chambers whereby the valve will be opened or closed, depending upon which one of the fluid pressure chambers the motor is connected with. The device, a fluid actuating device, may be either an exhauster or a suit-able device for supplying fluid under pressure. In the best form of my invention I connect the fluid pressure device with the fluid pressure chambers by means of a pipe, and I provide this pipe with a valve which is adapted to open the passage to one fluid pressure chamber while closing the passage to the other fluid pressure chamber and vice versa.

My invention also consists in combining with some or all of the elements above enumerated, a pivoted lever connecting the two pistons, and also in providing equalizing passages connecting the chambers on the opposite sides of .each piston, so that when the fluid pressure device is cut off from either chamber, the pressures on the two sides of that piston will be equalized.

The invention also consists in combining with some or all of the parts above enumerated, a thermostat adapted to be placed upon the wall of the room or in any other suitable position, and so arranged as to control the connection between the fluid pressure device and the fluid pressure chambers. In the best form of my invention the valve device provided with the two pistons as already explained, is placed upon the supply pipe so as to control the supply of the heating vehicle to the system, and an exhauster is connected with the two fluid pressure chambers of said valve device.

My invention also consists in certain other features of construction and combinations of parts hereinafter described and claimed.

My invention is fully illustrated in the accompanying drawings in which Figure 1 shows a heating system embodying my improvement. Fig. 2 is a sectional view of the supply valve. Fig. 3 shows a modification of the system. Fig. 4 is a sectional view of the discharge valve 5.

Similar numbers indicate similar parts in the different figures.

Referring to Figs. 1 and 2,1 is a radiator of any suitable construction. 2 is a supply pipe. 3 is the supply valve. 4 is a dis charge pipe. 5 is a discharge valve. 6 is a fluid pressure device in the form of an exhauster connected with the discharge pipe. 7 is a valve adapted to shut off the exhauster. 8 is a check valve in the discharge pipe. 9 is a tank or reservoir for the water of condensation. 10 is a relief pipe provided with any suitable form of valve 11. 12 is a pipe through which the water of condensation can be pumped to the boiler or to any other place desired. 13 is a cock for drawing off the water of condensation.

The construction of the valve on the supply pipe is shown in Fig. 2. 14 is a suitable casing provided with an inlet port 15. 16 is a valve adapted to open and close said port. This valve is connected with the lower end of a piston 17 which is adapted to reciprocate in one part of the valve casing. The piston 17 is made of such a size as to leave an equalizing passage 18 be tween the piston and the wall of the casing. 19 is a fluid pressure chamber on top of the piston 17. 20 is a second piston adapted to reciprocate in an adjoining part of the casing and made of such a size as to leave between itself and the walls of its casing, an equalizing passage 21. 22 is a fluid pressure chamber on top of the piston 20. 23 is a lever pivoted at 24, the ends of which project into recesses in the pistons 17 and 20, connecting those two pistons and causing them to move simultaneously in opposite directions. 25 is a passage in the valve casing having two branches as shown, one

'. of the branches leading to the fluid pressure chamber 19, and the other branch leading to the fluid pressure chamber 22. 26 is a valve or cook adapted to open the passage to one fluid pressure chamber while closing the passage to the other fluid pressure chamber, and vice versa. This valve 26 is preferably made in the form of an ordinary two- Way cock as shown. 27 is a pipe connecting the passage with the discharge pipe 4 and thereby with the fluid pressure device 6. 28 is a thermostat adapted to be placed upon the wall or in any other suitable position in the room to be heated, or at any desired place, and connected with the valve 26 by any suitable means. I have shown an electric circuit 29 including a battery, a magnet and an armature 30 adapted to be operated by the magnet and to operate the valve 26 through and by means of the lever 31.

The discharge valve is preferably made of a construction similar to that described and claimed in my pending application Serial No. 16808, (Patent No. 771,744, dated October 4t, 190a). The construction of this valve is shown in Fig. 4 in which 35 is the valve casing provided with a discharge port 36 at its lower end, 37 is a piston provided at its lower end with a valve 38 adapted to close the port 36, 39 is a passage for air or gas or vapor between the piston and the wall of the casing, 10 is a fluid pressure chamber above the piston, 41 is a passage in the casing connecting the fluid pressure chamber with the discharge pipe beyond the discharge port 36, 42 is a spring one end of which bears against the upper side of the piston and the other end of which bears against the lower surface of the screw 43 by means of which screw the tension of the spring can be adjusted, and 14; is a cap adapted to protect the screw 43.

The operation of this system is as follows: The thermostat 28 is so arranged that when the room is at a temperature less than the degree desired, cook 26 is in such a position as to connect the pipe 27 with the fluid pressure chamber 19. The exhauster being put into operation the pressure in the fluid pressure chamber 19 is reduced, causing the piston 17 to rise, thereby opening the port 15. When the piston 17 rises, the

In the drawing referred to.

Ifluid pressure chamber 22 and disconnecting the chamber 19 from the pipe 27. The exhauster reduces the pressure in the cham- {ber 22 and causes the piston 20 to rise, ;thereby moving the piston 17 in the opposite direction and closing the supply port 15 and shutting off the heating vehicle from the system. The system remains in this condition until the temperature of the room has again fallen, when the supply valve is 1 opened.

The descent of the piston 17 is aided by the equalizing of the pressures on fthe opposite sides of that piston through ;the equalizing passage 18.

It will be apparent that the valve 26 could be made in the form of a hand valve ;so as to be operated manually instead of .being operated by the thermostat 28. The equalizing passages between the pistons and 'the casing operate as vents for the fluid .pressure chambers. It will be seen that by means of the valve 26 the fluid pressure device is connected alternately with the tWo fluid pressure chambers.

The modification of my invention shown in Fig. 3 is the same as that already explained except that the discharge pipe is }not provided with any discharge valve as -.in the other system and has no exhauster connected with it. In this figure 32 is an air pipe provided with any suitable automatic air valve 33 and connected with an fexhauster 34:. A pipe 27 leading to the sup- .ply valve is connected with the air pipe 32. The operation of this system is substantially like that already explained except that the air is drawn out from the radiator through the pipe 32, and the supply valve is controlled by the exhauster 3 1 which is con nected with the air pipe, and the water of condensation escapes from the system by gravity.

are as follows: The operation of the valve which controls the system is positive in both It does not depend upon a directions.

spring or any similar device for any part of its operation. Its operation is therefore positive and uniform. It can be satisfac-' torily operated by the same fluid pressure device that removes the water of condensation and air through the discharge pipe, or,

Some of the advantages of my invention if preferred, it can be operated by a separate exhauster. The operation of thevalve is controlled by the slight turning of an ordinary valve, and this can be so arranged as to be turned according to the temperature which exists in the room to be heated, or at any other place the temperature of which controls the operation of the system.

What I claim as new and desire to secure by Letters Patent is 1. The combination with a heating system of a controlling valve device consisting of a suitable casing provided with inlet and outlet ports, a valve adapted to control the flow of a heating medium through said casing and a piston to operate said valve in one direction, a second piston to operate the valve in the other direction, the valve device being provided with a fluid-pressure chamber on one side of each piston, and with vents for said chambers, and a separate fluid-pressure device adapted to be connected alternately with the said fluid pressure chambers, substantially as set forth.

2. The combination with a heating sys tem of a controlling valve device consisting of a suitable casing provided with inlet and outlet ports, a valve adapted to control the flow of a heating medium through said casing and a piston to operate said valve in one direction, a second piston to operate the valve in the other direction, a pivot-ed lever directly connecting the pistons, the valve device being provided with a fluid pressure chamber on one side of each piston, and with vents for said chambers and a separate fluid pressure device adapted to be connected alternately with the fluid pressure chambers, substantially as set forth.

3. The combination with a heating sys tem of a controlling valve device consisting of a suitable casing provided with inlet and outlet ports, a valve adapted to control the flow of a heating medium through said casing and a piston to operate said valve in one direction, a second piston to operate the valve in the other direction, the valve device being provided with a fluid pressure chamber on one side of each piston, a chamber on the side oppositethe fluid pressure chamber of each piston, and with equalizing passages connecting the chambers on opposite sides of each piston, and a separate fluid pressure device adapted to be connected alternately with the two fluid pressure chambers, substantially as set forth.

4. The combination with a heating system of a controlling valve device consisting of a suitable casing provided with inlet and outlet ports, a valve adapted to control the flow of a heating medium through said casing and a piston to operate said valve in one direction, a second piston to operate the valve in the other direction, a pivoted lever connecting the pistons, the valve device being provided with a fluid pressure chamber on one side of each piston, a chamber on the side opposite the fluid pressure chamber of each piston, and with equalizing passages connecting the chambers on opposite sides of each piston and a separate fluid pressure device, a pipe connecting the fluid pressure device with the fluid pressure chambers and a valve in said pipe adapted to open the passage to one fluid pressure chamber while closing the passage to the other fluid pressure chamber, substantially as set forth.

5. The combination with a heating system of a controlling valve device, compris ing a suitable casing provided with inlet and outlet ports, a valve, a pair of pistons and a pivoted lever connected with said pistons for controlling the valve, said valve device provided with a pair of fluid pressure chambers located on one side of the said pistons, equalizing passages connecting the said fluid pressure chambers with the interior of the casing on the other side of each of the said pistons, and a passage adapted to be connected'with either of the said pressure chambers, a discharge valve for discharging the water of condensation from the system and a fluid pressure device connected with the said last mentioned passage substantially as set forth.

6. The combination with a heating system of a controlling valve device consisting of a suitable casing provided with inlet and outlet ports, a valve adapted to control the flow of a heating medium through said casing and a piston to operate said valve in one direction, a second piston to operate the valve in the other direction, a pivoted lever directly connecting the pistons, the valve device being provided with a fluid pressure chamber on one side of each piston, and

with vents for said chambers, and a separate fluid pressure device, a pipe connecting the fluid pressure actuating device with the fluid pressure chambers and a valve in said pipe adapted to open the passage to one fluid pressure chamber while closing the passage to the other fluid pressure chamber, and a thermostat controlling the valve, substantially as set forth.

7 The combination with a heating system of a controlling valve device, comprising a suitable casing provided with inlet and outlet ports, a valve adapted to control the flow of a heating medium through said casing, a pair of pistons, a pivoted lever connected directly with said pistons, the said valve device being provided with a pair of fluid pressure chambers formed on one side of the said pistons, equalizing passages for connecting the said fluid pressure chambers with the interior of the casing on the other side of the said pistons, and a passage adapted to be connected with either of said pressure chambers, a valve, a fluid pressure device connected with the said last named passage, and a thermostat adapted to control said valve in said last-named passage so as to connect said last named passage with either of the said pressure chambers substantially as set forth.

8. The combination with a heating system.

of a supply pipe, a supply valve device consisting of a suitable casing, inlet and outlet ports in said casing, a valve adapted to control the flow of a heating medium through saidcasing, a piston connected with said valve, a second piston, a pivoted lever connecting the pistons, the valve device being provided with a fluid pressure chamber on one side of each piston, and with vents for said chambers, and a separate fluid pressure device adapted to be connected alternately with the fluid pressure chambers, substantially as set forth.

I 9. The combination with a heating system of a supply pipe, a supply valve device, consisting of a suitable casing provided with inlet and outlet ports, a valve adapted to control the flow of a heating medium through said casing, a piston connected with said valve, a second piston, a pivoted lever connecting the pistons, the valve device beforth.

10. The combination with a heating system of a supply pipe, a supply valve device, consisting of a suitable casing provided with inlet and outlet ports, a valve adapted to control the flow of a heating medium through said casing, a piston connected with said valve, a second piston, a pivoted lever connecting the pistons, the valve device being provided with a fluid pressure chamber on one side of each piston, a chamber on the opposite side of each piston, and with equalizing passages connecting the chambers on opposite sides of each piston, an exhauster, a pipe connecting the eXhauster with I the fluid pressure chambers, and a valve in said pipe adapted to open the passage to one fluid pressure chamber while closing the passage to the other fluid pressure chamber, substantially as set forth.

11. The combination with a heating system of a supply pipe, a supply valve device consisting of a suitable casing provided with inlet and outlet ports, a valve adapted to control the flow of a heating medium through said casing, a piston connected with said valve, a second piston, a pivoted lever connectingthe pistons, the valve device being provided with a fluid pressure chamber on one side of each piston, a chamber on the opposite side of each piston, and with equalizing passages connecting the chambers on opposite sides of each piston, a discharge pipe, a pipe connecting the discharge pipe with the fluid pressure chambers of the supply valve, a valve in said pipe adapted to open the passage to one fluid pressure chamber while closing the passage to the other fluid pressure chamber, a discharge valve on' the discharge pipe, a piston controlling the said discharge valve, a fluid pressure chamber on one side of said piston controlling said discharge valve, an air passage connecting the last-mentioned fluid pressure chamber with the chamber on the other side of said piston controlling said discharge valve, 21 pipe connecting the said fluid pressure chamber with the discharge pipe, and an exhauster connected with the discharge pipe, substantially as set forth.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

ANDREW G.- PAUL.

WVitnesses THOMAS K. PETERs, NANNIE FINLEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

